The characteristics of Coffee washing treatment

Published: Oct 04, 2026 Author: World Gafei Last Updated: Oct/04/2026 169 views

Professional coffee knowledge exchange more coffee bean information please pay attention to the coffee workshop (Wechat official account cafe_style) generally what we call the water washing method refers to the whole washing method, which first removes the exocarp and pulp, leaving the pectin layer, and then puts the coffee beans into the fermentation tank to make the pectin layer disappear before drying, and finally remove the exocarp, the advantage is that the yield of raw beans is high, and the disadvantage is

Professional coffee knowledge exchange More coffee bean information Please pay attention to coffee workshop (Weixin Official Accounts cafe_style)

Generally speaking, what we call washing method refers to full washing method

First remove the exocarp and pulp, leaving a pectin layer, then put the coffee beans into a fermentation tank, so that the pectin layer disappears, then dry, finally remove the exocarp, the advantage is that the yield of raw beans is higher, the disadvantage is that washed beans are sour, and the aroma is not as good as that of the sun method, and the sweetness is not as high as that of the sun method.

Use washing and fermentation methods to remove the peel pulp and mucous membrane, using washing method farms must build washing tanks, and can introduce a continuous flow of fresh water. When processing, the fermented beans are put into the pool and moved back and forth, using the friction of the beans and the power of the running water to wash the coffee beans until smooth and clean. After washing, at this time, the coffee beans are also wrapped in the endocarp, the moisture content of 50%, must be dried, so that the moisture content reduced to 12%, otherwise it will continue to ferment, mildew corruption. The better treatment is to use sunlight drying, although the process is complicated and takes one to three weeks, but the flavor is very good and very popular.

The method comprises the following steps of: screening floating beans, removing peel and pulp (keeping pectin sticky layer), fermenting, washing, drying, shelling, grading and screening.

The water content of raw beans by washing method is about 12%.

The washing method is expensive, and to obtain 200 grams of green beans using the washing method requires washing 1 kg of coffee fruit and consumes 10 liters of water, so the treatment cost is expensive.

For example, K72's delicate washing gives this bean a bright acidity and some intense berry aromas.

Front Street suggested brewing parameters:

V60/90℃/1:15/Time 2 10"

Flavor: intense cherry flavor, brown sugar, sugar sweet

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou's FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。